15688790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:297

約数の個数: 64

約数和(自身を含む): 33384960

約数和(自身を除く): 17696170

約数列:

[1, 2, 5, 10, 13, 17, 26, 31, 34, 62, 65, 85, 130, 155, 170, 221, 229, 310, 403, 442, 458, 527, 806, 1054, 1105, 1145, 2015, 2210, 2290, 2635, 2977, 3893, 4030, 5270, 5954, 6851, 7099, 7786, 13702, 14198, 14885, 19465, 29770, 34255, 35495, 38930, 50609, 68510, 70990, 92287, 101218, 120683, 184574, 241366, 253045, 461435, 506090, 603415, 922870, 1206830, 1568879, 3137758, 7844395, 15688790]

約数ペア:

[(1, 15688790), (2, 7844395), (5, 3137758), (10, 1568879), (13, 1206830), (17, 922870), (26, 603415), (31, 506090), (34, 461435), (62, 253045), (65, 241366), (85, 184574), (130, 120683), (155, 101218), (170, 92287), (221, 70990), (229, 68510), (310, 50609), (403, 38930), (442, 35495), (458, 34255), (527, 29770), (806, 19465), (1054, 14885), (1105, 14198), (1145, 13702), (2015, 7786), (2210, 7099), (2290, 6851), (2635, 5954), (2977, 5270), (3893, 4030)]